Publicação: Release of formaldehyde by 4 endodontic sealers
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Objective. The purpose of this study was to evaluate the release of formaldehyde by some root canal filling materials. Study design. Two older endodontic sealers, AH 26 and Endomethasone, and 2 recently available sealers, AH Plus and Top Seal, were analyzed. Infrared and electronic spectroscopy were used to determine formaldehyde content after set of the materials. Results. Analysis showed that the AH 26 and Endomethasone sealers released formaldehyde. Although the AH Plus and Top Seal sealers have similar chemical composition, they released formaldehyde in a minimal concentration. Conclusions. The AH 26 and Endomethasone sealers released formaldehyde after setting; however, a minimum release was observed for the AH Plus and Top Seal sealers. Copyright © 1999 by Mosby, Inc.
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ah 26 filling material, AH Plus, antiinflammatory agent, bismuth, corticosteroid methanetriol mixture, dexamethasone, drug derivative, epoxy resin, fixative, formaldehyde, hydrocortisone, methenamine, paraformaldehyde, polymer, root canal filling material, silver, thymol, titanium, Topseal, chemistry, drug combination, human, infrared spectrophotometry, physical chemistry, spectrophotometry, topical drug administration, ultraviolet spectrophotometry, Administration, Topical, Anti-Inflammatory Agents, Bismuth, Chemistry, Physical, Dexamethasone, Drug Combinations, Epoxy Resins, Fixatives, Formaldehyde, Humans, Hydrocortisone, Methenamine, Polymers, Root Canal Filling Materials, Silver, Spectrophotometry, Spectrophotometry, Infrared, Spectrophotometry, Ultraviolet, Thymol, Titanium
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Inglês
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Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics, v. 88, n. 2, p. 221-225, 1999.
